Routing and planing machine



1949. v 1w. DIXON 2,47 88 ROUTING AND PLANING MACHINE Filed Jan. 25,1945 '2 Sheets-Sheet 1 l 1949- J. w. DIXON ROUTING AND PLANING MACHINE 2Sheets-Sheet 2 Filed Jan. 25, 1945 ram/5n Patented Aug. 23,1949

ROUTING AND PLANING MACHINE John W. Dixon, Indianapolis, Ind.; Louise LaVon Dixon, administratrix of said John W. Dixon,

deceased Application January 25, 1945, Serial No. 574,461

4 Claims. 1

This invention relates to a router and planer for use in such places aspress rooms and composing rooms for routing out cuts, stereotype casts,linotype slugs, or planing them or parts thereof to uniform type-highconditions. A primary object of the invention is that through its use, ahigh degree of accuracy, high speed, for use on all materials employedby the printing trade may be had. The invention permits results to beobtained within micrometer measurements, and at the same time it isrelatively inexpensive to the trade.

These and many other objects and advantages of the invention, includingthe possible use of the operator of both of his hands with his feetsquarely upon the floor without having to use foot pedals or the like,will become apparent to those versed in the art in the followingdescription of one particular form of the invention as illustrated inthe accompanying drawings, in which Fig. l is a View in side elevationwith parts broken away of a structure embodying the invention;

Fig. 2, a top plan view;

Fig. 3, a vertical, central transverse section through the operatingmotor and tool elevation control unit on an enlarged scale;

Fig. 4, a detail in side elevation of the tool shaft driveinterconnection with the motor shaft; and

Fig. 5, a wiring diagram illustrative of the motor and tool shaftcontrol.

Like characters of reference indicate like parts throughout the severalviews in the drawings.

A suitable table or base I is provided on which the plates or cuts maybe placed or secured by any of the conventional methods, such as byclamping within a T slot ll, all as is well known to those versed in theart. A post I2 is mounted to extend vertically above the table l0, andin the present form is shown as being mounted on the table at its leftrear corner. A bracket I3 has a long vertical sleeve [4 revolublytelescoping over the upper end of the post l2 to have an arm l5extending horizontally therefrom to be swung around at a constantelevation above the surface of the table l0.

On the outer free end of this arm I5 is a yoke l6 secured thereon is afixed manner and between the legs of this yoke is rockably mounted amotor carrier arm I! to pivot in the yoke IS on a vertical axistherethrough as defined by the pivot and securing bolt 18. The arm I! isprovided with an integral strap is slit on one side to have out-turnedcars 20 and 2i normally spaced apart one from the other andinterconnected by a take up bolt 22 to reduce the internal diameter ofthe strap I9.

This internal diameter of the strap i9 is made to be such that when thebolt 22 is not drawn up, and the ears 20 and 2| left in their normalspaced apart state, a motor 23 may be received slidingly verticallythrough the strap l9 and secured then in any desired elevation by beingfrictionally gripped by the strap H! as the ears 2D and 2| may be drawntogether relatively by taking up the bolt 22. In order to permitmicrometer vertical positioning of the motor 23 relative to the strapl9, some means may be provided for lowerll'lg and raising the motor 23upon release of the bolt 22.

In the present form of the invention, such means is shown as consistingof a pin 24 fixed in the housing of the motor 23 to extend outwardlythrough an inclined slot 25 provided in the strap 19. This mechanismoperates to cause the motor 23 to rise relative to the strap l9 byrevolving the motor within the strap in a counter-clockwise direction,Figs. 1 and 2, and to lower the motor by revolving the motor in aclockwise direction. That is, as the motor 23 may be turnedcounter-clockwise, the pin 24 will travel upwardly in that slot 25, andreverse travel of the motor will cause the pin 24 to travel downwardlyin that slot. The angle of the slot relative to the horizontal planewill determine the degree of rise and fall in accordance with the amountof rotary travel of the rotor itself. Obviously the lower the angle ofthe slot 25 the easier it may be to secure fine adjustments of elevationof the motor 23.

At any desired elevation of the motor, the bolt 22 may be taken up sothat that elevation may be maintained. In order to hold the elevation ofthe motor more securely, a lever 26 secured to the arm l1, herein shownas through the strap l9, rides over the bar 21 mounted across the frontportion of the table ill in the present showing. This bar 21 has itsupper edge in exact parallel alignment with the top face of the tableIll, and as the motor 23 may be shifted around to any desired positionover the table ID by the operating lever 26, the motor 23 will remain inits fixed elevation as above indicated.

The motor 23 drives any type of routing or planing tool 28 that may bedesired to be used for the particular job. Now in order to preventhaving to bodily lift the motor 23 to lift the tool 28 out of cuttingposition over any printing surface of a plate or cut or the like thatmay be on the table ID, a structure is provided whereby the tool 28 isnormally held in an open position above that printing surface elevationand is only loW- ered into cutting position when the motor itself is setinto operation. This mechanism is illustrated particularly in Fig. 3. 7

Within the motor 23 is the usual armature 29 having a shaft 30 extendingvertically therefrom and beyond the top and bottom ends. shaft 30 istubular and carries slidingly therethrough a tool shaft 3| on the lowerend of which is a chuck 32 provided to carry a tool 28. This shaft 3| islongitudinally shiftable through the shaft 30 but is driven thereby byany suitable clutch means herein shown as by a pin 33 fixed through theshaft 3| to engage slidingly in vartical slots 34 and 35 provided in thelower end of the shaft 30.

The upper end of the tool drive shaft 3! extends beyond the upper'end ofthe armature shaft 30 and enters a counter bore 36 provided in theextension of the housing of the motor 23 where a head 31 may travelvertically within that bore 36. A spring-36 bearing by its lower endagainst the lower end or the counter bore so" also bears This againstthe underside of the head 3-? by its upper 7 end to retain the shaft 3!normally in an upper position. 7 In other words to lower the shaft '31to bring the tool 28- into a cutting position, the shaft gt needs to bedepressed to overcome thespring In order that the'sha'ft '31 bedepressed only when the motor 23- is set in operation, an electricaloperator therefor is provided that maybe energized only when the motor23 is" energized. This may be done by placing the operator ctrcui'twi'th the motor circuit such as is indicated in Fig; 5 of the wiringdiagram.

This operator consists essentially era solenoid mag-net carried within ahousing semounted on the" upper end of the housing of the motor 2?;herein shown as by screw" threaded engagement with that portion of themotor housing-- which carries the counter bore 36". Centrally mountedwithin the housing 39 'is" a metal armature lil guided within acylinderM to confine the arrriature 40 to vertical travel.

A plunger-42 is axially carried by thelower' end of'the cylinder Al andhas a stem 3 extending onup through the cylinder tape in the path or thearmature 40'. The lower: end of the lun'ger' $72 by a reduced diameterportiorr l i 'riormally rests on the upper end oi the shaft it.'Thesterrr ss 'is longitudinally guidedwithina. reduced 'di'-' ameterb'ore' in: the cylinder 41 and-has -'a sliding fit so that the plungernormallyorops gravity: to: the position-above indicated. Furthermore;:thi's normal position. is furtlier'isecured' by the weight or the:armature lfl" bearingvon the upper" end of. the: stem '43. The spring38"isoff suflleientistrength to:support both the plunger'i'z and its.attached parts plus the arm'ature cl while at' th'e same timeholding theshaft 31 in its up: pemrost osition as; indicated in Fig'; 3.-

Now when the motor 23 1's ener'giz'e'dby closing; the: switch 45', Fig.5, to receive" current froma line source, the: winding is or thesolenoid simultaneously energized since it in circuit with the motor23',- lierein-shownas-in parallel connection; Upon the energizing:-of'tne coil" 46 the-armature {40 is pulled downwardly within 'th windingla -the winding having sufficient to -pull the armature 1 '40 down tocompress the" sprins 3B and iowertne-snait' 3F and co'n'se quently thetool 28 to its lowermost cutting position as determined by the lower endof the armature 40 striking the lower end of the armature bore in thecylinder 4|, thereby establishing a fixed position for the tool. Theaction of the solenoid is of suificient power to retain the armature inthat lowered position against the normal resistance of the tool 28 incutting the metal of the plate or cut. Then the tool 28 may be guidedabout over the metal being cut simply by shifting the lever 26 in thedesired direction by sliding it over the bar 27. Then when the cuttingis to be discontinued, the switch 45 is allowed to open so that both themotor 23 and the soienoid w'iriding G6 are de-energized whereupon thetool 28 is immediately raised by the spring 33 even before the armature29 comes to a stop. In other words, as long as the tool 28 is in thecutting position the winding it remains energized, and immediately uponany opening of the circuit the tool 28 is pulled upwardly;

While I have herein shown and described the invention in the oneparticular form, it is ob vious that changes may be made in boththemechanical and electrical design's'of the various parts and circuits allwithout departingfrom the spirit of the invention, and I do not desireto be limited to that precise form beyond the limita= tionsasmaybeimposed by the following claims;

I' claim:

1 In a routing and planing machine, a metor; motor carrying meansshiftable horizontally} means for adjusting and fixing the meter on saidmeans atselected elevations;- tool carrying means carried by said motor,vertically shift'a'ble there of; means normally yielding-1y holding"said tool carrying means in an upper position" of said vertical' travel;and electrically operated means err er'gi'zedf and tie-energizedsimultaneously with] said motor overcoming said holding means andshifting, said tool carrying means to a lower position of its; said'verti'cal travel; and means- 0 "nfining saidmotor carrying meanstotravel at a} fixed elevation.

2. In a routing and planing machine. a motor; motor carrying meansshiftab 1e horizontally; means for adjusting and fixing the motor onsaid means at selected elevations"; tool carrying means carried by'said'motor, vertically shiftable' thereof; means normally yielding'ly holdingsaid rear carrying means in an upper position of said vertical travel;and electrically operated means energized and de-energiz'edsimultaneously with said motor overcomin said holding means and shiftingsaid tool carrying me'ans to a lower-post tionof 'itss'aid verticalnever; said motor having a tubular armature shaft; said tool; carryingmeans comprising a" tool chuck, and a shaft carryi ng the chuck andslidinglytelescopin'g with insaid armature shaft; and tool carrying holding means comprising" a spring 'lnterposed be tweeh abutmentsorr saidmotor and said chuck" Shaft; V

3; ma routing andplaning'machine, a motbjr; motor carryingm'eansshiftable horizontallyf means for adjusting and-fixing'the'motoronsaid n'fea'hs'at selectedelevationsi' tool carrying means carried bysaid motor, vertically shiftable th'ereof; meansnorm'ally' yieldi'nglyholding said tool carrying means in an" upper position of' said" vertidal-travel; and electrically operatedmeans en-' ergizedand deene'rg'i'z'edfsimultaneously with said n'io'tor" overcoming said holdingmeans and shift" ing" said tool carrying means to a lower position orits" said-vertical travell said motor haviriga' tubular anmature shaft;said tool carrying means comprising a tool chuck, and a shaft carryingthe chuck and slidingly telescoping within said armature shaft; and toolcarrying holding means comprising a spring interposed between abutmentson said motor and said chuck shaft; said electrically operated meanscomprising an electro-magnet, and an armature for depressing said shaft.

4. In a routing and planing machine, a motor; =motor carrying meansshiftable horizontally; means for adjusting and fixing the motor on saidmeans at selected elevations; tool carrying means carried by said motor,vertically shiftable thereof; means normally yieldingly holding saidtool carrying means in an upper position of said vertical travel; andelectrically operated means energized and de-energized simultaneouslywith said motor overcoming said holding means and shifting said toolcarrying means to a lower position of its said vertical travel; saidmotor having a tubular armature shaft; said tool carrying meanscomprising a tool chuck, and a shaft carrying the chuck and slidinglytelescoping within said armature shaft; and tool carrying holding meanscomprising a spring interposed between abutments on said motor and saidchuck shaft; said electrically operated means comprising a solenoidmagnet mounted on the motor, an armature shiftable by said magnet, meanstransmitting movement induced by said magnet of the magnet armature toproduce downward travel of said tool chuck shaft in opposition to saidspring.

JOHN W. DIXON.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number

